Hacker News on 22 April 2020

• Things I wished more developers knew about databases
• Why are Soviet math textbooks so hardcore in comparison to US textbooks? (2017)
• Conversations with a six-year-old on functional programming (2018)
• Build a real-time Twitter clone with LiveView and Phoenix 1.5
• Magic Leap reportedly slashes jobs and steps away from consumer plans
• Our data centers now work harder when the sun shines and wind blows
• Small business rescue earned banks $10B in fees
• JPMorgan’s small business loans instead went to its biggest customers
• Patreon lays off 13% of workforce
• Permanent.org – Nonprofit, secure cloud storage